Simplified correlation models for CO/H2 chemical reaction times

This paper provides simplified correlation models for CO/H-2 chemical reaction times. The procedure used for the CO/H-2 simplified modeling utilized the full chemical kinetics mechanism run over a range of temperatures from 700 to 1800 K, pressures from 0.5 to 50 atm, mixtures from 0% to 95% CO, and equivalence ratios from 0.2 to 2.0 to determine ignition (or reaction) time, The correlations for ignition times are given in formulas as functions of equivalence ratio, temperature, and pressure. Two different forms of correlations were obtained, one being a single, overall correlation and the other a two-Stage correlation representing regions of high and low temperatures. These correlations are shown to work well over a range of chemical time scales spanning ten orders of magnitude. The correlations are also compared with measured data from the literature. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.